The angle shown our supplementary supplementary angles equals 180°

Question

3X +15° and 60° what is the value of X?

Answer 1

Since the sum of supplementary angles equals 180°, we can set up the equation:

3X + 15° + 60° = 180°

Combine like terms:
3X + 75° = 180°

Subtract 75° from both sides:
3X = 105°

Divide by 3:
X = 35°

Therefore, the value of X is 35°.